689-11181-00 Cylinder Head Gasket for Yamaha Mercury Mariner C30 30A W30 | JLM Marine family-yamaha-6mlhs Reconnect the fuel line to

Reconnect the fuel line to the outboard motor

Locate the water pump housing and remove the pump cover plate screws to access the old impeller

and visible damage like scoring

Locate the Switch: Identify the old trim/tilt switch on the 703 side mount remote control box

Ensure the engine is off and disconnect the battery for safety

689-11181-00 Cylinder Head Gasket for Yamaha Mercury Mariner C30 30A W30 | JLM Marine family-yamaha-6mlhs Reconnect the fuel line toCylinder Head Gasket Fits Yamaha & Mercury Mariner 2 Stroke 2530 HP Outboards This aftermarket cylinder head gasket is engineered for Yamaha and Mercury Mariner 2 stroke outboard engines rated at 2530 HP. It is designed to fit models including Yamaha C30 and 30A, as well as Mercury Mariner 30A and W30 with 2 cylinder, single carburetor configurations. Built to OEM specifications, this gasket ensures a reliable seal between the cylinder head and block,